BibTeX @article{Walter2008,author={Walter, Michael and Akola, Jaakko and Lopez-Acevedo, O. and Jadzinsky, P.D. and Ackerson, C.J. and Calero, G. and Whetten, R.L. and Grönbeck, Henrik and Häkkinen, Hannu},title={A unified view of ligand-protected gold clusters as superatom complexes},journal={Proceedings of the National Academy of Sciences},volume={105},pages={9157},year={2008},}